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Re: Metadata support
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Re: Metadata support

  • Subject: Re: Metadata support
  • From: maurits <email@hidden>
  • Date: Tue, 27 Jun 2006 04:03:28 +0200
Apart from the creation date discussion, I guess it hasn't been absolutely clear yet what deficiencies in Apple's pertinent file copying tools people like Dan have complained here, so for completeness some facts, also to be found in my post [1]. Of course all Apple tools don't preserve creation dates, which is still topic of the discussion here...

- cp -Rp doesn't preserve symlink owners [2] (rdar://4523881)
- ditto doesn't preserve symlink owners (rdar://4523882), BSD flags, locked flag, HFS+ extended attributes, ACLs (forgot to file a rdar on these ones...)
- rsync -aE doesn't preserve BSD flags, locked flag, modification date of files with resource forks, ACLs (I'm sure there's gazillions of rdars)
- asr (file-level) doesn't preserve symlink owners (rdar://4523924); in 10.4.6 there's a regression by which it doesn't preserve BSD flags, locked flag, HFS+ extended attributes, ACLs, either (rdar://4523878).

I haven't done any investigation of archive formats such as tar, so I can't tell how Apple's tools fare in that respect.

Cheers,

maurits

[1] http://blog.plasticsfuture.org/2006/03/05/the-state-of-backup-and-cloning-tools-under-mac-os-x/

[2] I'd agree that symlink owners are a pretty marginal piece of information; however it's still nice to see who was responsible for a certain file, and there are cases like links in Apache web directories where the owner actually _does matter_, and losing it can break things.
--
http://www.plasticsfuture.org
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References: 
 >Metadata support (From: Tomas Zahradnicky <email@hidden>)
 >Re: Metadata support (From: Q <email@hidden>)
 >Re: Metadata support (From: Dan Shoop <email@hidden>)
 >Re: Metadata support (From: Boyd Waters <email@hidden>)
 >Re: Metadata support (From: "Jordan K. Hubbard" <email@hidden>)
 >Re: Metadata support (From: Dan Shoop <email@hidden>)
 >Re: Metadata support (From: "Jordan K. Hubbard" <email@hidden>)
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